Question

A wheel has a diameter of 42cm.how many revolutions does it cover to make 33km​

Answer 1

Explanation:

Diameter (D)= 42cm

Circumference = (pie)D= (22/7)*D=(22/7)*42 = 132cm

1 circumference = 1 revolution

1 revolution = 132cm = 1.32m

for covering 33 km no. of revolution = 33*1000/1.32 = 34031